IrDA v1.1, Bluetooth v1.1 (with optional adapter), IrDA v1.1 is compatible with Windows®XP/2000/Me/98. Bluetooth operation depends on the devices and software used. Mobile phone printing limited to JPEG files 1MB or smaller only. Requires mobile phone with IrDA port and support for IrMC version 1.1 protocol, or PDA with IrDA port and support for IroBEX protocol, with phone or PDA positioned no more than 7.9 inches from printer.